<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        p:before{
            content:url("https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=3329672832,730150356&fm=58");
        }
    </style>
    <!--引用 外部样式-->
    <link rel="stylesheet" href="My.css">
    <link rel="stylesheet" href="http://at.alicdn.com/t/font_544187_556fkna1ddtsatt9.css">
</head>
<body>
<p class="my">哈哈哈哈哈</p>
<p>ewrwe</p>
<i class=" iconfont icon-el-icon-yj"></i>
</body>
</html>